The best OBD2 scanners can not only show what's going on inside your car but also turn off the 'check engine' light, helping you to avoid costly repairs.
A powerline extender kit lets you stretch your network connection to any part of the house, using the wiring that's already in the walls.
D-Link DHP-601AV is the most affordable powerline extender kit we've reviewed, but suffers from short range and low data throughput.
The Netgear PLP2000 is the best choice for powerline extenders, thanks to great range and top performance.
Bitdefender Antivirus Free Edition runs on autopilot and offers no extras or customization options, but it's ideal for anyone who doesn't want to fuss with antivirus software.
Norton 360 Standard, Norton 360 Deluxe and Norton 360 with LifeLock include the most complete antivirus-software and identity-protection-service combinations you'll find today.
ESET's antivirus software barely slows system performance, but it offers middling malware protection and can get expensive if you have a lot of machines to protect.
IdentityForce offers the best overall service when credit monitoring is factored in, but LifeLock has the edge on pure identity protection.
AVG AntiVirus Free is beaten in features by its more glamorous sibling Avast Free Antivirus and beaten in malware protection by everything else.
Avast Free Antivirus offers a ton of features for a free antivirus program but has mediocre malware protection and a heavy system load.
Windows Defender isn't the absolute best antivirus software, but it's easily good enough to be your main malware defense.
Kaspersky Security Cloud Free combines excellent malware protection, plenty of extra features and a very light system-performance impact.
IDShield's frequent three-bureau credit reports and scores are great bargains, though IdentityForce and LifeLock monitor more personal data.
Powerline adapters and Wi-Fi extenders let you stretch your network farther and help eliminate dead spots, but use very different technology
While pricey, the Netgear Orbi RBK50 is one of the fastest, most powerful routers we've tested, even without its extension.
The new standard for super-fast wireless internet is Wi-Fi 6, but a 6GHz boost might make Wi-Fi 6e even better.
Sophos Home Premium is inexpensive, easy to use and provides good malware protection, but it can slow system performance.
Mullvad is the best VPN service for serious privacy, but it's technically complex, somewhat pricey and doesn't have the best performance.
Space Zoom can let you zoom in 100x when taking photos with the Galaxy S20 Ultra. Here's how to use this feature.
Using the Galaxy S20's Hyperlapse mode, you can capture time-lapse video — even in the dark. Here's how to access the feature.
To unlock your Galaxy S20, you'll need to use a fingerprint. Here's how to add your fingerprint to Samsung's phones.
Wi-Fi extenders have gotten more affordable, but they're still tricky devices to set up. Here are some tips on where to place your extender to boost your Wi-Fi network's reach.